Residential delivery area · Iowa
ZIP Code 50647: Janesville, IA
ZIP code 50647 uses the postal name Janesville, Iowa and lies mostly in Bremer County (62% of its land) with the rest in Black Hawk County (Census 2020 ZIP-county file). About 2,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $104,063 (Census Bureau, ACS 2020-2024). By Census place, 5% of its land lies in Janesville; 95% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2024
- ZBP2023
- IRS2022
- Town
- Janesville · its only residential ZIP
- County
- Bremer County (62%); Black Hawk County (38%)
- Census places
- Janesville
- Metro area
- Waterloo-Cedar Falls, IA
- House district
- IA-2 119th Congress
- State
- Iowa
- Time zone
- Central
- Land area
- 30.4 sq mi · 65 people per sq mi
Where is ZIP code 50647?
50647 centers on 42.651°, -92.497° and covers 30.4 square miles of land plus 0.6 of water. It borders 4 ZIP codes: 50670, 50613, 50622, 50677.
The map draws ZIP code areas only. For the streets inside 50647, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 50647 compare with the rest of Bremer County?
| Measure | 50647 | In Bremer County | In IA |
|---|---|---|---|
| People (ACS 2020-2024) | 1,978 | 8th of 13 | 283rd of 970 |
| Median household income | $104k | 1st of 10 | 44th of 396 |
| Median home value | $314k | 1st of 11 | 40th of 423 |
Its median household income is higher than in 83% of U.S. residential ZIP codes, and it is denser than 47% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 50647?
The 2020 Census counted 1,989 people in 50647; the ACS, which samples households over 2020-2024, estimates 1,978. Between the 2010 and 2020 censuses its population grew 5.0% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 1,978±382 (90% margin)
- 2020 Census count
- 1,989+5.0% since 2010 (1,894)
- Households
- 799
- Median age
- 46.8
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 50647?
Of the 1,978 people the ACS estimates in 50647, 20.8% are under 18 and 19.8% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (95.6%).
- Under 1820.8%
- 18 to 6459.4%
- 65 and older19.8%
- White, not Hispanic95.6%
- Other or two or more3.7%
- Asian, not Hispanic0.5%
- Hispanic or Latino0.2%
- Black, not Hispanic0.0%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 50647 earn?
Median household income is $104,063 (ACS 2020-2024), the highest of the 10 ranked ZIP codes in Bremer County. It is not measurably different from 2015-2019 ($98,012 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $104,063±$18,719
- Income per person
- $50,811
- Below the poverty line
- 3.1%
- Unemployed (of the labor force)
- 2.0%
- Adults 25+ with a bachelor's degree
- 28.3%
- Adjusted gross income per tax return, 2022
- $88,805960 returns; wages 65% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 50647?
- Median home value (owners' estimate)
- $314,200
- Median gross rent
- $618
- Homes owned by their occupants
- 94.7%
- Housing units
- 902
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 50647?
33 business establishments had a location in this ZIP code in 2023, 1 fewer than in 2018; the most are in other services (except public administration) (ZIP Code Business Patterns).
- Other services (except public administration)8
- Manufacturing5
- Administrative and support and waste management and remediation services5
- Construction3
- Wholesale trade3
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 50647?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 50670 | Shell Rock | 2,270 | $85k | 6.3 mi |
| 50613 | Cedar Falls | 43,867 | $79k | 8.3 mi |
| 50622 | Denver | 3,549 | $95k | 8.5 mi |
| 50677 | Waverly | 12,673 | $86k | 8.5 mi |
| 50660 | New Hartford | 1,143 | $96k | 8.9 mi (near) |
| 50703 | Waterloo | 17,952 | $50k | 12.9 mi (near) |
| 50619 | Clarksville | 2,150 | $84k | 13.3 mi (near) |
| 50668 | Readlyn | 1,216 | $86k | 13.9 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.